2019-7-10

Potapchuk M. I., Rasskazov I. Iu., Korneeva S. I., Lomov M. A. Evaluation of internal dumping impact on the geomechanical state of Vostok-2 deposit underground mining. Izvestiya vysshikh uchebnykh zavedenii. Gornyi zhurnal = News of the Higher Institutions. Mining Journal. 2019; 7: 77–85 (In Russ.). DOI: 10.21440/0536-1028-2019-7-77-85

Introduction. Internal dumping is becoming more relevant, it is used at both opencast deposits and combined deposits. Therefore, an integrated study aimed at estimating the geomechanical state of the surrounding mass of Vostok-2 deposit is becoming more relevant in case waste rock is in the borrow cut.
Research aim. Geomechanical estimation of internal dumping impact on the state of rock mass at Vostok-2 tungsten ore deposit, which mines ore by the combined method.
Methodology. The research included laboratory study of physical and mechanical properties of rock, stability calculation with the use of modern software, numerical modeling of the stress-strained state of rock mass with the finite element method.
Results. Full assessment of the impact of internal dumping on the geomechanical state of the surrounding mass has made it possible to state that waste rock disposal in the central part of an open pit will not significantly influence the geodynamic condition of deep horizons. At that, in the course of development, the dump will keep ample stability.
Summary. The results of the integrated research at Vostok-2 can be applied at other facilities which mine in similar mine and geological conditions. Key words: deposit; internal dumping; physical and mechanical properties; rock mass; displacement; borrow cut; stability.

 

REFERENCES

  1. Sakantsev G. G. Resource-saving technologies in the development of ore deposits using goaf. Gornyi informatsionno-analiticheskii biulleten (nauchno-tekhnicheskii zhurnal) = Mining Informational and Analytical Bulletin (scientific and technical journal). 2015; 2: 29–37. (In Russ.)
  2. Rasskazov I. Yu., Kursakin G. A., Potapchuk M. I., Freidin A. M. Selection of deep level geotechnology in terms of the “Vostok-2” orebody. Journal of Mining Science. 2012; 48 (1): 114–122.
  3. Rasskazov I. Iu., Potapchuk M. I., Sobolev A. A., Saifulin V. V., Kursakin G. A. Improvement of piling technology for Hakandzhinskoe gold-ore deposit. Vestnik TOGU = Bulletin of PNU. 2016; 2 (41): 99–106. (In Russ.)
  4. Gabitov R. M., Gavrishev S. E., Bondareva A. R., Kuznetsova T. S., Litvinov A. M. The impact of mine engineering conditions of the steeply pitching deposits on internal dumps formation at the final extraction and reconstruction of open pits. Vestnik Magnitogorskogo gosudarstvennogo tekhnicheskogo universiteta im. G. I. Nosova = Vestnik of Nosov Magnitogorsk State Technical University. 2009; 1 (25): 5–9. (In Russ.)
  5. Martynenko V. P. Deep pits rational parameters substantiation at internal dumping. Gornyi informatsionnoanaliticheskii biulleten (nauchno-tekhnicheskii zhurnal) = Mining Informational and Analytical Bulletin (scientific and technical journal). 1998; 3: 146–150. (In Russ.)
  6. Gvozdev V. I. Vostok-2 and Lermontovskoye deposits. In: Large and major mineral deposits. Moscow: ESS RAS Publishing. 2006; 3 (2): 627–662. (In Russ.)
  7. Rasskazov I. Iu. Rock pressure control and management at the ore fields of the Far East region. Moscow: Gornaia kniga Publishing; 2008. (In Russ.)
  8. Soloviev S. G., Krivoshchekov N. N. Vostok-2 gold-base-metal-tungsten skarn deposit, Central SikhoteAlin, Russia. Geologiia rudnykh mestorozhdenii = Geology of Ore Deposits. Moscow: Nauka Pulishing. 2011; 6: 543–568. (In Russ.)
  9. Eberhardt E. Rock slope stability analysis — utilization of advanced numerical techniques. University of British Columbia, Vancouver, Canada, 2003. 41 p.
  10. Grigoriev A. A., Lushpei V. P., Kostylev Iu. V. The results of observations of the stability of face slopes of coal mines in the difficult mining and geological conditions. In: Proceedings of the International scientific conference “Modern technologies and the development of polytechnic education”, Vladivostok, September 14th–18th, 2015. p. 183–185. (In Russ.)
  11. Dhananjai V. A. Finite element approach of stability analysis of inn ternal dump slope in coal field. Mining Journal. 2014; 5: 11–16.
  12. Rasskazov I. Yu., Kursakin G. A., Potapchuk M. I., Miroshnikov V. I., Freidin A. M., Osadchy S. P. Geomechanical assessment of deep-level mining conditions in the “Yuzhnoe” complex ore deposit. Journal of Mining Science. 2012; 48 (5): 874–881.

 

Received 25 June 2019

Language

E-mail

This email address is being protected from spambots. You need JavaScript enabled to view it.

 

 

счетчик посещений